Java Libraries and Property Files

dmackinnon2004

Hello All,

I currently have a Webtop application which uses an SBO that references a Composer Java Library. I am in the process of trying to extract my java .properties files from my JARs and add them as Property Files in the Java Library in Composer. My hope is that I would be able to update the properties via DA without requiring a deployment or the need to rebuild my JAR files.

I have deployed my Java Library with the properties files listed using Composer, however when I run my SBO I don't see the properties files being downloaded to the ${dfc.data.dir}/cache directory, only the JARs from the java library. Is this to be expected?

I did see that if I use DA and go to /System/Modules/SBO/{my sbo}/{my java library} and select Show All Objects my .properties files are there. Are they supposed to be downloaded to the cache at runtime and how should I access them programmatically? Using classloaders getResourceAsStream?

Any explanation of this process would be greatly appreciated. I reviewed the composer user manual and it is not very helpful in this aspect.

Thanks,

Doug

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Comments

IngoZ

Doug,

I can't recall the source/exact cause but as far as I remember it had somewhat to do with classloaders only picking up properties bundled into .jar files. Also I'm not aware of the BOF framework handling anything else than .jars in terms of caching.

One way would be to bundle the properties into a separate jar so you can deploy them independently. Otherwise I only see the option of fetching the properties manually via some URL and handle local caching of it yourself.

Sorry for the vague answer but this is all I can add to this.

dmackinnon2004

Thanks for the response Ingo. That's a good idea if I can't deploy the property files themselves. I think I'm going to open this up as a ticket with EMC as well. Maybe they can get some better documentation around the upload property file option in the java library in composer. Thanks!

christinmathew

Doug,

Did you ever figure out how to read the properties file added to a java library?

I am trying to read the properties file from a job method deployed as a BOF module with no success so far.

Thanks,

Chris

christinmathew

We found a resolution for our issue. It is basically a composer bug. When the java library which contains the properties file is added to a module and deployed, the properties files' attribute r_aspect_name is supposed to get updated with the BOF signature (the same as the jars which are part of the java library - com.documentum.fc.bof.bootstrap.DfModuleItemChangeMonitor). But dardeployer/composer is not setting this.

So the simple workaround is to manually set the value of r_aspect_name for the properties file. (DQL - update dm_sysobject object set r_aspect_name ='com.documentum.fc.bof.bootstrap.DfModuleItemChangeMonitor' where r_object_id='xxxxxxxxxxxxxxxxxx'). Clear the BOF cache, and retry!

lastnitescurry


christinmathew wrote:

We found a resolution for our issue. It is basically a composer bug. When the java library which contains the properties file is added to a module and deployed, the properties files' attribute r_aspect_name is supposed to get updated with the BOF signature (the same as the jars which are part of the java library - com.documentum.fc.bof.bootstrap.DfModuleItemChangeMonitor). But dardeployer/composer is not setting this.

So the simple workaround is to manually set the value of r_aspect_name for the properties file. (DQL - update dm_sysobject object set r_aspect_name ='com.documentum.fc.bof.bootstrap.DfModuleItemChangeMonitor' where r_object_id='xxxxxxxxxxxxxxxxxx'). Clear the BOF cache, and retry!

So this is why I never could not get this to work I was working off

lastnitescurry

meant to use link

Configuring a deployed BOF module | Say Scheveningen

christinmathew

I haven't tried the attachment option. Instead I added properties file under the 'Properties Files' option in the properties of java library artifact.

java lib.JPG.jpg

As per the link you shared, attachments are supposed to work in the same way.

Keith Bailey

Hi Chris,

It's nearly a year and a half later, but I've been stung by this bug which appears to be in 7.1.0150.0035 of composer.

Composer may well be 'old hat', but its still required to implement jobs if you're using xCP 2

Did you get a reference number from EMC ?

Many thanks,

Keith

christinmathew

Keith,

EMC support did not share any reference number then.

sagar.pandav

This workaround works for me.:)

KrisBogaert

Usefull post. Even though it is older.

I prefer to no longer use Composer type of tooling and do everything by hand again. I only got my method + dmc_module with verb to work after setting the r_aspect_name of the dmc_jar jars in my dmc_module folder.

Thanks